Disinfecting device.



F. LE FAGUAYS.

DISINPEC-TING DEVIGB.

APPLICATION FILED JULY 10,1909.

Patented May 17,1910.

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W1 gasses ANDREW & GR HAM 60.. vnoro-Lrmocnnmzna w asmNGYON, 1.0

P. LE PAGUAYS.

DISINFEGTIHG DEVICE. APPLICATION FILED JULY 10,1909.

Patented May 17, 1910.

2 SHEETS-SHEET 2.

WE E5595 MWM ANDREW a. GRAHAM c0 moramnmmvnzks wnsmuawu a c FERNAND LE FAGUAYS, OF NANTES, FRANCE.

DISINFEGTING DEVICE.

Specification of Letters Patent.

Application filed July 10, 1909.

Patented May 17, 1910.

Serial No. 506,953.

To all whom 'it may concern:

Be it known that I, FERNAND Ln FAGUAYS, citizen of the Republic of France, residing at Nantes, in the Republic of France, have invented certain new and useful Improvements in 'Disinfecting Devices, of which the following is a specification.

1 The invention consists in a method of disinfection, and in apparatus for carrying it into practice.

It is well known that the most effective way of disinfecting any article is to submit it to a high temperature. For this purpose stoves are generally used in which the articles to be disinfected are inclosed for a given time. The employment of this method is necessarily restricted owing to the capacity of the stoves, and it can only be applied to portable articles.

The new method consists in projecting onto the articles to be disinfected, whatever they may be, tapestry, furniture, walls, floors, platforms, etc., a jet of air brought to a temperature of 200 to 350 Fahr. This method does not entail the displacement of the articles. It is sufficient to bring in front of these latter a nozzle for directing the jet of air. It will be evident that apparatus enabling the process to be carried out practically can be of such simple form that the apparatus can be a domestic appliance.

In the accompanying drawings, various types of, portable apparatus for carrying into practice the method above indicated are shown by way of example. Figure 1 is a vertical section of a very simple form of the apparatus; Fig. 2 is a similar section of a more elaborate apparatus; Fig. 3 is a corresponding horizontal section on the line a2m; igs. d and 5 show in plan and elevation the nozzle by which the heated air is discharged; Fig. 6 shows in vertical section an apparatus arranged for the disinfection of carpets, parquetry, the ground of courtyards, the gardens of hospitals or public buildings, or the like; Fig. 7 is a detail of one of the constituent parts of this apparatus.

In these figures like letters or figures of reference indicate the same parts.

The apparatus shown in Fig. 1 is mounted on a platform or truck 1, provided with wheels 2. It comprises a heating chamber a surmounted by a kind of fine or chimney I), having a constriction at 12 -The chamber a and the chimney b are surrounded by a heatinsulating covering 0, the whole being hidden by a suitable casin d.

In the lower part 0 the chamber a, the bottom of which is perforated, are arranged a certain number of burners e for gas, petroleum, or spirit, fed by a single tube 7. In the upper part of the chamber [2 is arranged a pipe Z, fixed or movable, on which is fitted a flexible pipe 18, Figs. 1 and 5, terminated by a nozzle 19. The air escapes from the nozzle by an elongated opening like a slot.

To use this apparatus, it suflices to light the burners e thegases of combustion rising in the flue b and passing through the constricted part 6 induce through the perforations at the bottom of the chamber a a vigorous inflow of externalair; this air is heated as it rises in the said chamber a, mixes with the products of combustion in the fine I), and the mixture which is raised to a high temperature (200 to 350 Fahr.) escapes by the pipe Z to the nozzle 19.

In order to effect the disinfection by means of the apparatus which has just been described, it is only necessary to move the nozzle 19 in front of the articles or surfaces to be disinfected in order to treat them thoroughly with heated air. Of course the duration of this treatment will vary according to the articles to be treated.

In certain cases the jet of air discharged at short range, might injure the articles treated by reason of its high temperature, particularly in the case of certain fabrics. In order to obviate this difficulty, the nozzle 19 is provided with a forked piece 21, the position of which can be regulated by means of a screw 22. According to the position given to this piece 21, it will be seen that the end of the nozzle 19 cannot be approached beyond the predetermined position which gives every security when the. disinfecting operation is being carried out.

The apparatus shown in Fig- 1 can be combined with a fan' to draw the external air into the flue b. Fig. 2 shows how this modification is carried out. The fan is shown at i and is operated by hand or mechanically. The air is driven into the tube h which traverses the bottom of the heating chamber a and terminates at h in the center of the flue 7) below the constriction 6 The tube It could, of course, have a serpentine course in the chamber a before reaching h Whether the apparatus comprises a fan or not, the perforated bottom of the heating y as shown in Fig. 3 in order to slot opening toward the ground," The fan'z vertically can be inclined or arranged horizontally without departing from the spirit" of the invention. The horlzontal-po'sition is more suitable, furthermore, for the disin fectionof carpets, parquetry, the ground of childrens playgrounds or.'the' li ke.

Fig. 6 shows an apparatus similar to that of F ig. 2, butarranged fortheabo've' purpose, which does not require aflexible tube. In this apparatus the pipe Z, shown in plan iew in'F-ig. 7, forms the "nozzle which is directed downward, its elongated opening or actuated mechanically from the wheels of the vehicle, or in any other suitable "wa forcesthe external air intoatrunk Zg'which is preferably constricted at b; 'this' irpasses" nto the pipe .or nozzle] inorder'to escape,

by the opening of this'latter. ofthe said trunk b which cransmit'the heat to the trunk b and the nozzle Z are contained in the. heating chamber a, in f the lower part of which the burners 'e are arranged. ifflfhe'sef latter heat the Walls of the no'zfzljefland the airfed by the fan-z. The gases of combus-t tion escape from the "chamber a to. thee'xterior by openings 0. As in the erticaltypeof the apparatus the chamber a is" surround ed by a heat-insulating covering c'lwhich 'can also be concealed by a'e'asing not shown in the drawing. I

I declare that "what I claim is l. In an apparatus for disinfecting, a

heating chamber-havingperforated bottom and a continuous uninterrupted flue with:

restrictedv passage intermediate its ends, means for -caus1ng air to pass upward through said chamber from the bottom thereof and through said restricted passage to create a vigorous-inflow of external air and to be mixed with the products of combustion be'yond'said restricted passage and forked means for regulating the distance relative t0' the articles at which the device can be situated" p .2. In an apparatus for disinfecting, a

- heating chamber having perforated bottom and acontinuous uninterrupted flue with restricted passage intermediate its ends, means for causing air to pass upward through said chamber from the bottom thereof and through said restricted passage to create a vigorous inflow of external air and to. be mixed with the products of combustionfbeyond said restricted passage, a nozzle, means for directing the air upon the articles .to be -disinfected, and adjustable fo'rk ed' means, connected therewith for regulating'fthe, distance relative to the articles at which said-nozzle can be situated.

f 3. Disinfecting j apparatus 'con'ipr'ising a heating chamber, means for causing-air to pa's's'into said "chamber, means for conduct-- ing the heated air from said chamber, a noz- 5 zle connected with' the'last mentioned means, for-directing the airupon thearticlesto be disinfected, and adjustable. forked means connected. with said nozzle for regulating the distance relative to the articles at which the nozzle-can be situated.

In witness whereof, I have V hereunto signed'my name this 29th day of June 1909-, in the presence of two subscribing witnesses.

. FERN-AND LE F-AGUAYS.

witne'ssesz L. FAGUAYS, K; ETANGUAY. 

